Home / 5,103.72-7,649.43-2,637.21

Finding the Fourth Proportional to 5,103.72, 7,649.43 and 2,637.21

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Solution

The fourth proportional to 5,103.72, 7,649.43 and 2,637.21 is: 3,952.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.72 : 7,649.43 = 2,637.21 : x
  2. Step 2: Convert to fraction form
    5,103.72/7,649.43 = 2,637.21/x
  3. Step 3: Cross multiply
    5,103.72x = 7,649.43 × 2,637.21
  4. Step 4: Simplify right side
    5,103.72x = 20,173,153.29
  5. Step 5: Solve for x
    x = 20,173,153.29/5,103.72
  6. Step 6: Final answer
    x = 3,952.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.